Before leaving Martha’s Vineyard, we called in at Mariana Cook’s forthcoming exhibition at Tanya Augoustinos’s A Gallery in Oak Bluffs (opens tomorrow).   It was only half hung.   I’ve previously known Mariana’s work mainly as a portrait photographer (she took the official portrait of me on the website and Chris Smith for the NPG), but her work has now diversified into semi-abstraction, including details of a black silk dress, steps, window frames in France, an interior in Santorini, light on the pavement, trees in Central Park and a door in Oak Bluffs.   Some of these have been published in her book, Close at Hand.